The mistake that you are making is by putting yourself at the center of history, you/we are not, your feelings aren't part of history unless you share them with someone else and turn them into an "event". For example the history of Old Trafford is linked to everyone that has experienced moments associated with Old Trafford, the Stadium could disappear tomorrow but his history won't as long as we remember and share our memories and past feelings.
In fact look at what you are doing with the Emirates, you are judging it with Highbury in mind, Highbury isn't there anymore but its history, its link to Arsenal is strong even for someone that isn't a fan of Arsenal. Arsenal didn't eradicate their history by moving to the Emirates, they added a new chapter, people may not like that chapter but that's irrelevant because history isn't about what we like or not but what we remember/associates or not.
I have to disagree with you there unfortunately.
I am not comparing Emirates with Highbury, they can't compare.
There is no history in the Emirates, intact the club tried to create a link to the past to give it an identity by putting the original Highbury clock up at one end.
Why bother if a new chapter is being created?
A structure retains the history of past generations, it permeates through every crack, wall, and chipped plaster board. That cannot be carried on through to a brand new structure, no matter how many trinkets or clocks are put up from the past.
A clubs history is intrinsically linked to it's ground. Changes do need to be made, but a club is consigning their past to photos and annuals when they move grounds.
That's not to say I would be against United ever moving grounds, but I would much prefer renovations of Old Trafford over a brand new ground.